WEBTOON Check-in

I want to complain that their check-in system is terrible... I clearly accessed the platform and read comics, but the check-in screen often doesn't pop up, causing me to miss it. But as a free user, I guess I don't have the right to complain 😭 (I've only bought tokens once). I worked four days straight during the holiday, and on the last day, I got super pissed off by an incompetent colleague. My pre-ordered physical book, 'On the Way to Meet Mom,' got delayed. I'm trying to schedule a meetup with my cram school classmates, but one person keeps delaying giving a date that works for everyone. There are too many complaints, I don't know who to vent to, but getting angry is exhausting...ಥ_ಥ